(19)
(11) EP 1 496 432 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.12.2007 Bulletin 2007/50

(43) Date of publication A2:
12.01.2005 Bulletin 2005/02

(21) Application number: 03258226.4

(22) Date of filing: 29.12.2003
(51) International Patent Classification (IPC): 
G06F 9/302(2006.01)
G06F 7/52(2006.01)
 G06F 9/38(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 30.06.2003 US 610929

(71) Applicant: INTEL CORPORATION
Santa Clara, CA 95052 (US)

(72) Inventors:
  • William, Macy W. Jr.
    Palo Alto California 94301 (US)
  • Huy, Nguyen V.
    Pflugerville Texas 78660 (US)

(74) Representative: Molyneaux, Martyn William 
Harrison Goddard Foote 40-43 Chancery Lane
London WC2A 1JA
London WC2A 1JA (GB)

   


(54) Method and apparatus for performing multiplication of signed packed operands


(57) Method, apparatus, and program means for performing a sign and multiply operation. In one embodiment, an apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store to a storage location a result value equal to a first source operand multiplied by a sign value of a second source operand. In some embodiments, the first source operand may be overwritten by the result.







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